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An economics test was given and the following sample scores were recorded: A B E F J 12 9 12 8 Individual C D

An economics test was given and the following sample scores were recorded: A B E F J 12 9 12 8 Individual C D Score 12 7 10 The standard deviation of the distribution is G H I 13 8 9 An economics test was given and the following sample scores were recorded: Individual A B F G H Score 12 12 12 13 8 The Z-score for individual D is C 7 D 10 E 9 ww 9 8

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